package com.example.hillo.myapplication;

/**
 * Created by Hillo on 2016/10/11.
 */
public class Caluculator {
    public double sum(double a, double b){
        return 0;
    }

    public double substract(double a, double b){
        return 0;
    }

    public double divide(double a, double b){
        return 0;
    }

    public double multiply(double a, double b){
        return 0;
    }
}
